Move Document::m_inStyleRecalc into DocumentLifecycle

Source/core/dom/DocumentLifecycle.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 30 matching lines @@
 }
 
 DocumentLifecycle::~DocumentLifecycle()
 {
 }
 
 void DocumentLifecycle::advanceTo(State state)
 {
     // FIXME: We can dispose a document multiple times. This seems wrong.
     // See https://code.google.com/p/chromium/issues/detail?id=301668.
-    ASSERT(state > m_state || (state == Disposed && m_state == Disposed));
+    ASSERT(state > m_state || (state == Disposed && m_state == Disposed) || (isActive() && state == Clean));
     m_state = state;
 }
 
 }